I commonly use the Lee Pro Auto Disc Powder Measure on top of the Lee rifle charging die to charge rifle cases, including .308. I have the 'Adjustable Charge Bar' installed on mine and with some fine tuning and adjustment, it will throw consistent charges, sometimes with as little variance as plus or minus .1 grain. One thing to remember, though, is that one has to actuate the charging mechanism 2-3 times to get the desired charge for most larger rifle cartridges, i.e. I need 45 grains of powder for my '06, then I set the charge bar at 15 grains and actuate the charger 3 times. Still, pretty accurate!